20 Best Window Companies in Castle Pines, CO (2025 Reviews)
Thinking about upgrading your home's windows? We’ve got all the information you need in this list of the best window installation companies.
We analyzed all the top-rated window companies in Castle Pines and selected the best 20 based on:
Customer reviews
Window installation expertise
Popularity with home-owners like you
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Why you can trust EcoWatch
Whether you're doing home renovations or have old windows, windows play a key role in conserving your home's energy. During the winter months, the last thing you want is your heat to leak out of your outdated windows.
That’s not great for either your bank account or the environment, but one of the best window installation companies can help you with that.
Unlike other review sites, EcoWatch ranks window installation companies based on energy efficiency while also balancing cost, customer satisfaction and service area.
Best Availability
Renewal by Andersen
- Great Industry Reputation
- Award-winning Company
- Member of US Green Building Council
- Manufactures products in-house
Best Energy-Efficient Features
Champion
- Many years of experience
- Low prices relative to competitors
- Limetime warranty
Power Home
- Uses eco-friendly materials
- Well-trained, certified installers
- Lifetime or lengthy warranty
Best Window Installation & Replacement Companies in Castle Pines
The EcoWatch team examined dozens of installers in Castle Pines to find the top window installation companies for our readers. The installers mentioned in this article passed our review standards for energy-efficient offerings as well as customer service, price, local expertise and beyond.

Window World
EnergyStar Partner
Large serice area
Low prices relative to competitors
Great industry reputation
Lifetime warranty
Quality of service will depend on your area
Window World is the largest window replacement company in the country, known for its vinyl windows and affordability. Window World has been in the window industry for around 27 years.
If you’re looking for a company that is certified by the Environmental Protection Agency (EPA) and Energy Star and supports charities like St. Jude Children’s Research Hospital, Window World may be the company for you.
Energy Efficiency of Window World WindowsWindow World is an Energy Star partner with a variety of energy-efficient windows that are Energy Star certified. Note that not all of the company’s windows are Energy Star certified, so make sure to ask your Window World representative when inquiring about services.
How much does Window World cost in Castle Pines?Window World does not outline prices on its website, but it's known for offering some of the most affordable window installations around. The best way to know for sure is to get a free quote from the company.

Renewal by Andersen
Great industry reputation
Award-winning company
Member of US Green Building Council
Manufactures products in-house
No lifetime warranty
More expensive than competition
Renewal by Andersen is a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. Andersen has been in the window industry for around 27 years.
If you’re looking for a company that uses in-home estimates and advanced digital tools to help you plan and visualize your project before getting started, Andersen may be the company for you.
Energy Efficiency of Renewal by Andersen WindowsRenewal by Andersen is an Energy Star partner with a variety of energy-efficient windows that are Energy Star certified. Note that not all of the company’s windows are Energy Star certified, so make sure to ask your Andersen representative when inquiring about services.
How much does Renewal by Andersen cost in Castle Pines?Andersen does not outline prices on its website, but based on customer feedback, you can expect to pay anywhere between $750 to $1,250 per window for an installation with Andersen. The best way to know for sure is to get a free quote from the company.
We have tried to remain unbiased and transparent by describing pros and cons for each provider. Additionally, any partnerships do not influence our rankings.
More Window Companies in Castle Pines
Renewal by Andersen Window Replacement
Denver, COAlso offers door installation and replacement
Free assessment
Comprehensive 20-year warranty
Educational Website
Price Transparency
Hassle-free window replacement
Good Customer Service
Services Offered
Double-Hung
Custom Window Designs
Energy-Efficient Options
Vinyl Frames
Bay Windows
Glass Doors
Window Replacement/Installation
Champion Replacement Windows of Colorado Springs
Colorado Springs, COFree assessment
Good Customer Service
Price Transparency
Services Offered
Glass Doors
Window Replacement/Installation
Bay Windows
Double-Hung
Champion Replacement Windows of Denver
Denver, COFree assessment
Good Customer Service
Price Transparency
Services Offered
Bay Windows
Double-Hung
Glass Doors
Window Replacement/Installation
Power Home Remodeling
Centennial, COFree assessment
Timely Service
Price Transparency
Good Customer Service
Services Offered
Energy-Efficient Options
Window Replacement/Installation
DaBella
Colorado Springs, COTimely Service
Good Customer Service
Wide range of styles
Triple-pane vinyl windows
Customized to your home
Services Offered
Vinyl Frames
Window Replacement/Installation
Double-Hung
Glass Doors
Window Nation
Aurora, COGood Customer Service
Educational Website
Price Transparency
Free assessment
Services Offered
Bay Windows
Double-Hung
Custom Window Designs
Energy-Efficient Options
Glass Doors
Window Replacement/Installation
Colorado Windows and Restoration
Highlands Ranch, COFree assessment
Timely Service
Good Customer Service
Price Transparency
Services Offered
Window Replacement/Installation
Glass Doors
Double-Hung
Storm Exteriors
Centennial, COPrice Transparency
Good Customer Service
Timely Service
Free assessment
Educational Website
Services Offered
Window Replacement/Installation
All-Star Construction Windows & Doors
Parker, COEducational Website
Free assessment
Good Customer Service
Services Offered
Energy-Efficient Options
Glass Showers
Glass Repair
Window Replacement/Installation
Mirrors
Vinyl Frames
Bright Idea Egress — Window Kits
Sheridan, COFree assessment
Timely Service
Educational Website
Good Customer Service
Price Transparency
Services Offered
Metal Frames
Window Replacement/Installation
Wood Frames
United Windows Pro - Windows and glass repair
Aurora, COGood Customer Service
Educational Website
Price Transparency
Financing options available
Timely Service
Commercial and residential
Fast emergency response
Free assessment
Services Offered
Glass Repair
Energy-Efficient Options
Triple Pane Glass
Glass Doors
Window Repair
Wood Frames
Tempered Glass
Window Replacement/Installation
DMD Window & Door
Wheat Ridge, COTimely Service
Good Customer Service
Price Transparency
Free assessment
Services Offered
Custom Window Designs
Energy-Efficient Options
Wood Frames
Window Replacement/Installation
Glass Doors
Vinyl Frames
Oros Home Enhancements
Colorado Springs, COMinority-owned
Price Transparency
Free assessment
Free estimate
Good Customer Service
Certified Andersen and Pella installers
Services Offered
Window Replacement/Installation
Glass Doors
Liberty Construction
Colorado Springs, COProVia and Andersen windows
Lifetime workmanship guarantee
Price Transparency
ENERGY STAR® certified
Good Customer Service
Educational Website
Free assessment
Services Offered
Skylights
Window Replacement/Installation
Custom Exteriors
Berthoud, COPrice Transparency
Timely Service
Educational Website
Free assessment
Good Customer Service
Services Offered
Window Replacement/Installation
Vinyl Frames
Glass Doors
Bay Windows
EcoShield Exteriors
Littleton, COFree assessment
Good Customer Service
Services Offered
Window Replacement/Installation
Energy-Efficient Options
Paramount Siding & Windows
Littleton, COFree assessment
Educational Website
Services Offered
Window Replacement/Installation
Bay Windows
Double-Hung
Custom Window Designs
DenCo European Windows & Doors
Englewood, COEducational Website
Good Customer Service
Price Transparency
Services Offered
Glass Doors
Window Replacement/Installation
Wood Frames
Energy-Efficient Options
One Window AT A Time
Aurora, COTimely Service
Price Transparency
Services Offered
Energy-Efficient Options
Vinyl Frames
Fiberglass Frames
Glass Doors
Window Repair
Window Replacement/Installation
Wood Frames
Window Doctor Of Colorado
Sheridan, COPrice Transparency
Services Offered
Window Replacement/Installation
Calculate how much you can expect to pay for window installation and replacement in Castle Pines, CO using our customized window cost calculator.
Estimates will vary based on window dimensions and other unique factors to your home. Getting in touch with a local window installer is the best way to get an accurate cost estimate for your home.
How Installing Energy-Efficient Windows in Castle Pines Saves You Money
When you switch to energy-efficient windows, you may see a few benefits, such as:
- Decrease your carbon footprint: In Castle Pines, you can reduce your indirect greenhouse gas emissions by about 460 pounds per year after you upgrade to energy-efficient windows.
- Save on power bills: Switching to energy-efficient windows lowers your energy bills by about 12% because you need less energy.
- Protect your investment: Upgrading and repairing your windows is an important part of maintaining your property and its real estate value, particularly if you have an older home.
- Protect your valuables: Many Energy Star certified windows have low-emissivity coatings, which not only insulate your home better, but also filter out harmful UV rays, preventing fading of your furniture, carpet and other valuables.
Estimated Cost of Window Replacement in Castle Pines
Windows come in various shapes, purposes and styles, so costs and services will differ remarkably depending on your project. Below, we go over the typical cost and services that you’ll find from window installation companies.
How Much Do New Windows Cost?
Typically, homeowners in Castle Pines can expect that most window installations will cost between $250 and $1,200, with the most common installations sitting at around $600. But prices differ remarkably based on the size of your home, complexity of the installation, your location and the quality of the company you choose. Many window companies also offer door replacements, which will make your project cost more.
It’s important to keep in mind that windows with higher efficiency may cost more initially but can save you hundreds of dollars by decreasing your energy bills. Investing in Energy Star certified windows can save Castle Pines homeowners $443+ a year when replacing single-pane windows.
Costs will also vary based on the material you choose for your window frames. Aluminum frames are the least expensive. They’re sturdy, light and easy to maintain, but offer poor insulation. Vinyl frames are somewhat expensive and offer good insulation. Composite frames made from wood fibers encased in plastic also provide good insulation and are moderately expensive. Wood frames are the most expensive and are the most in-demand. They’re also aesthetically pleasing and offer decent insulation for your home.
What Services do Window Installers Offer?
When it comes to window installations, there are generally two kinds that your provider will have: full-frame and pocket installations.
A full-frame installation is a total window replacement. This service involves taking out the old window, the windowsill, and the exterior and interior trim. It also involves other materials, including insulation and drip edges, which increase the total cost of the project. Also worth noting: you may have to touch up the paint surrounding the window after a full-frame installation. Pocket installations are on the simpler end and won’t cost as much because they involve merely replacing the window within its existing frame. But if the frame has any damage or rot, you may have to get a full-frame installation instead.
If you’re unsure which window installation service you should get, your installer can advise you. In general, the choice is based on factors such as the age and condition of the home, the type of building material, budget and time restrictions.
Best Availability
Renewal by Andersen
- Great Industry Reputation
- Award-winning Company
- Member of US Green Building Council
- Manufactures products in-house
Best Energy-Efficient Features
Champion
- Many years of experience
- Low prices relative to competitors
- Limetime warranty
Power Home
- Uses eco-friendly materials
- Well-trained, certified installers
- Lifetime or lengthy warranty
How We Choose the Best Window Installers in Castle Pines
EcoWatch differs from most reviewers because we examine these companies through a sustainability lens. Along with energy efficiency, we assessed several window installers in Castle Pines and ranked them based on the following methodology:
Service Area
This one is pretty self-explanatory, but we’ve chosen to highlight window installation companies that serve the Castle Pines area so you can find a quality window installation company near you.
Work Quality
When picking new windows, the quality and variety of services can often play just as important of a role in insulation and performance as the type of window you choose. We do rate window installers higher if they offer high-quality products, but we also factor in workmanship as reflected in customer feedback.
Customer Reviews
Another self-explanatory yet very important review factor is customer feedback. If most customers don’t have positive feedback about their service from a certain window installation company, you won’t see it featured on EcoWatch.
Cost
This one is a give-and-take: as with other services, cheap window companies are not going to provide the highest quality service. On the other hand, we want to ensure we’re highlighting companies that provide a range of price and financing options so they’re accessible to most homeowners.
Warranty
Protecting your investment in new windows is important to many homeowners. That’s why window installation companies that give you lengthy warranties for products, parts and labor rank higher with EcoWatch.
Years of Experience
Lastly, we like to see companies that have a proven track record in the industry. Window installers that have more experience are going to earn higher rankings by our standards. We like to see at least ten years of experience.
Castle Pines, CO Window Replacement FAQs
How much does window installation cost?
The average cost of replacing one window can range between $450 and $650. There are a variety of factors that affect the cost, which include how energy-efficient the windows are, the number of windows, local labor costs, the materials used in designing the windows, styles and sizes of windows and your property’s location.
Which kind of window is the best?
A window’s energy efficiency is influenced by a variety of factors, including the quality of the installation and the kind of window. Look for Energy Star Certified windows — these are usually the most energy-efficient since they are certified by the U.S. Department of Energy.
What do window installers do?
Window installers travel to your property to remove your old windows and replace them with new ones. Some providers install products distributed by other companies, whereas others are both manufacturers and installation companies combined. The installer will also clean up after the installation.
When is the best time of year to replace windows?
While you can install windows any time of year, warmer weather is typically better for replacing windows. In addition, it shouldn’t be raining, as rain can make the installation more difficult.
Should I replace my windows all at once?
If your windows are greater than 20 years old, it’s most likely time to replace all of them. At that point, they are typically less efficient, leakier and/or more damaged than new windows. Doing your windows all at the same time will involve less paperwork and less stress.